f ( x ) = ax^4 + bx^3 + cx^2 + d*x + e
f ´(x ) = 4ax^3 + 3bx^2 + 2cx + d
f ´´(x ) = 12ax^2 + 6bx + 2c
f ( 0 ) = 8
f ´( 0 ) = 0
f ( -2 ) = 3
f ´´ ( -2 ) = 0
f ´( -2 ) = 4
f ( 0 ) = 8 => e = 8
f ( x ) = ax^4 + bx^3 + cx^2 + d*x + 8
f ´(x ) = 4ax^3 + 3bx^2 + 2cx + d
f ´´(x ) = 12ax^2 + 6bx + 2c
f ´( 0) = 0 => d = 0
f ( x ) = ax^4 + bx^3 + cx^2 + 8
f ´(x ) = 4ax^3 + 3bx^2 + 2cx
f ´´(x ) = 12ax^2 + 6bx + 2c
f ( -2 ) = 3
f ( -2 ) = a(-2)^4 + b(-2)^3 + c(-2)^2 + 8 = 3
f ´( -2 ) = 4
f ´(-2 ) = 4a(-2)^3 + 3b(-2)^2 + 2c(-2) = 4
f ´´ ( -2 ) = 0
f ´´(-2 ) = 12a(-2)^2 + 6b(-2) + 2c = 0
a(-2)^4 + b(-2)^3 + c(-2)^2 + 8 = 3
4a(-2)^3 + 3b(-2)^2 + 2c(-2) = 4
12a(-2)^2 + 6b(-2) + 2c = 0
3 Gleichungen mit 3 Unbekannten.
f ( x ) = 0,0625·x^4 - 1,5·x^2 + 8